fix: linter errors

src/components/common/DialogProvider.tsx

@@ -1,60 +1,8 @@
 import React, { useState, useCallback, useRef } from 'react';
 import './DialogProvider.css';
 import { FaTimes } from 'react-icons/fa';
-
-export interface ConfirmOptions {
-  confirmLabel?: string;
-  cancelLabel?: string;
-}
-
-export interface PromptOptions {
-  confirmLabel?: string;
-  cancelLabel?: string;
-  placeholder?: string;
-}
-
-export interface TimeSigResult {
-  numerator: number;
-  denominator: number;
-}
-
-let _showAlertFn: ((message: string) => Promise<void>) | null = null;
-let _showConfirmFn: ((message: string, options?: ConfirmOptions) => Promise<boolean>) | null = null;
-let _showPromptFn: ((message: string, defaultValue?: string, options?: PromptOptions) => Promise<string | null>) | null = null;
-let _showTimeSigFn: ((message: string, defaultValue?: TimeSigResult) => Promise<TimeSigResult | null>) | null = null;
-
-export function showAlert(message: string): Promise<void> {
-  if (!_showAlertFn) {
-    window.alert(message);
-    return Promise.resolve();
-  }
-  return _showAlertFn(message);
-}
-
-export function showConfirm(message: string, options?: ConfirmOptions): Promise<boolean> {
-  if (!_showConfirmFn) {
-    return Promise.resolve(window.confirm(message));
-  }
-  return _showConfirmFn(message, options);
-}
-
-export function showPrompt(message: string, defaultValue?: string, options?: PromptOptions): Promise<string | null> {
-  if (!_showPromptFn) {
-    return Promise.resolve(window.prompt(message, defaultValue));
-  }
-  return _showPromptFn(message, defaultValue, options);
-}
-
-export function showTimeSigPrompt(message: string, defaultValue?: TimeSigResult): Promise<TimeSigResult | null> {
-  if (!_showTimeSigFn) {
-    const raw = window.prompt(message, defaultValue ? `${defaultValue.numerator}/${defaultValue.denominator}` : '4/4');
-    if (!raw) return Promise.resolve(null);
-    const [n, d] = raw.split('/').map(Number);
-    if (!n || !d) return Promise.resolve(null);
-    return Promise.resolve({ numerator: n, denominator: d });
-  }
-  return _showTimeSigFn(message, defaultValue);
-}
+import { registerDialogFns } from '../../util/dialogUtil';
+import type { ConfirmOptions, PromptOptions, TimeSigResult } from '../../util/dialogUtil';
 
 interface DialogInfo {
   type: 'alert' | 'confirm' | 'prompt' | 'timesig';
@@ -129,10 +77,7 @@ const DialogProvider: React.FC<{ children: React.ReactNode }> = ({ children }) =
   const registered = useRef(false);
   if (!registered.current) {
     registered.current = true;
-    _showAlertFn = openAlert;
-    _showConfirmFn = openConfirm;
-    _showPromptFn = openPrompt;
-    _showTimeSigFn = openTimeSig;
+    registerDialogFns(openAlert, openConfirm, openPrompt, openTimeSig);
   }
 
   if (!dialog) {